I would like to get the peak to background ratio from a spectrum that I obtained in Root. In some analyzing tools this function is already built-in. I am not sure how to go about it in Root.
ROOT Version: 6.18
Platform: Not Provided
Compiler: Not Provided
You can fit the peak; then get the fit function’s integral, see
Fit the background, get that fit function’s integral in the signal region.
Or you take the bin content in the signal region (which corresponds to signal + background) and divide by the background fit’s function integral in that signal region. That gives you
(b+s)/b, i.e. that ratio minus 1 is what you’re after.
Got it thank you very much.